CVE-2021-47091

MediumCVSS 5.5/10Last modified Jun 17, 2026

Description

In the Linux kernel, the following vulnerability has been resolved:

mac80211: fix locking in ieee80211_start_ap error path

We need to hold the local->mtx to release the channel context, as even encoded by the lockdep_assert_held() there. Fix it.

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-667

Affected software

VendorProductVersions
LinuxLinux>= 295b02c4be74bebf988593b8322369513fcecf68, < ac61b9c6c0549aaeb98194cf429d93c41bfe5f79; >= 295b02c4be74bebf988593b8322369513fcecf68, < c1d1ec4db5f7264cfc21993e59e8f2dcecf4b44f; >= 295b02c4be74bebf988593b8322369513fcecf68, < 87a270625a89fc841f1a7e21aae6176543d8385c
LinuxLinux5.10

References

Timeline

Published
Mar 4, 2024
Last modified
Jun 17, 2026
NVD status
Analyzed

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CVE-2021-47091: Medium severity, CVSS 5.5 | Vulnix